Here’s a map from DAE.

Statement open for endorsement by all States parties to the Treaty on the Non Proliferation of Nuclear Weapons:

We reaffirm that the Democratic People’s Republic of Korea cannot and will never have the status of a nuclear-weapon State in accordance with the Non-Proliferation Treaty,

From 1996.

This portion about nuclear deterrence is perhaps of current interest:

Here’s a good 2022 piece titled “Targeting Al Shifa: Explaining an Intelligence
Failure.” I’m not in a position to validate these claims, but I found this section helpful:

Here’s one:

Japan’s Prime Minister Fumio Kishida gave an interview in which he discussed some issues related to the NPT RevCon.

Here’s what he said about China:

It’s a fact that the military trends involving China are causing security concerns within the [Indo-Pacific] region, as well as international society as a whole. Japan will say to China what it needs to say, including that it must properly fulfill its responsibilities in the field of nuclear disarmament.

If the nations possessing nuclear weapons do not change, then the reality we face today will not change. That holds true, of course, for our ally, the United States. But we also want to see China get involved in disarmament. And Japan must continue to make efforts in that regard.

This 7/26 UNSG report titled On the Threat Posed by Isil (Da’esh) to International Peace and Security and the Range of United Nations Efforts in Support of Member States in Countering the Threat contains this paragraph about WMD terrorism:

Committee Executive Directorate and the United Nations Institute for Disarmament Research co-organized the launch of technical guidelines developed under the United Nations Global Counter-Terrorism Coordination Compact to facilitate the implementation of Security Council resolution 2370 (2017) and related international standards and good practices on preventing terrorists from acquiring weapons. The Office delivered training to Iraqi and Jordanian officials on preventing terrorists from using chemical, biological, radiological and nuclear material and weapons, strengthening their capacities to implement their respective counter- terrorism response plans.